The Opera Unite API might be the other salient feature what everyone here is missing. Their India-evangelist pointed me to it on twitter.
Opera is likely counting on 3rd party developers on making the cool/killer apps. Things like setting up a photo gallery of kids now doesn't require you to sign up for any 3rd party service anymore. This is the anti-cloud in the sense that you can own your data. (pending a security audit of their n-tier architecture)
Disclaimer: I'm not at my desk and haven't tried the new release yet. I may be way off base with respect to the API's capabilities.